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可以用更简单的办法啊,看看用莲蓬头放满1L水用多少时间,然后计算下淋浴大约需要多少时间,然后算一下嘛……不能精确知道1L的概念,也可以用水的重量来算……总之方法很多,就看有没有这个意愿了……我就不信那些住老房子的人没有计算器……纸笔总有吧……但是如果不会加减乘除就没办法了……
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Reader Comments (Page 1 of 1)
aziv @ Oct 28th 2008 9:40AM
可以用更简单的办法啊,看看用莲蓬头放满1L水用多少时间,然后计算下淋浴大约需要多少时间,然后算一下嘛……不能精确知道1L的概念,也可以用水的重量来算……总之方法很多,就看有没有这个意愿了……我就不信那些住老房子的人没有计算器……纸笔总有吧……但是如果不会加减乘除就没办法了……